the answer to this question is A
To answer you question, The two main ingredients are Heat and coolness.
Higher silica content means higher viscosity. But lower temperatures and low gas content mean higher viscosity. Hence, lower viscosity and low gas content mean higher temperature of magma.
Answer:
The answer is 3. symbols and distance.
Explanation:
On a map, the legend (key) explains the symbols used and the scale shows the distances represented in the map. So the answer is 3.
